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Synthesis 2002(9): 1201-1212
DOI: 10.1055/s-2002-32533
PAPER
© Georg Thieme Verlag Stuttgart · New York

Synthesis of Photo-Crosslinkable Hole-Transport Polymers with Tunable Oxidation Potentials And Their Use In Organic Light-Emitting Diodes

Richard D. Hrehaa, Ya-Dong Zhanga, Benoit Domercqb, Nathalie Larribeaub, Joshua N. Haddockb, Bernard Kippelen*b, Seth R. Marder*a,b
Department of Chemistry, The University of Arizona, Tucson, AZ 85721, USA
Optical Sciences Center, The University of Arizona, Tucson, AZ 85721, USA
e-Mail: smarder@u.arizona.edu;
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Publication History

Received 19 March 2002
Publication Date:
28 June 2002 (online)

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Abstract

A series of photo-crosslinkable arylamine-based hole-transport copolymers has been synthesized. The synthetic methodology employed allows for the redox potential of the polymer to be tuned by the incorporation of electron-donating or -withdrawing moieties. Upon exposure to ultraviolet radiation, the polymers become insoluble, as evidenced by UV/Vis absorption spectroscopy, a feature that is useful for the fabrication of multilayer organic light-emitting diodes (OLEDs) by solution processing techniques. OLEDs based on these hole-transport polymers have been fabricated and the performance of the devices has been evaluated. The photo-crosslinking process has been optimized so that it no longer adversely impacts device performance.

Key words

hole-transport agents - photo-crosslinked polymers - organic light-emitting diodes - bis(diarylamino)biphenyls